Golter

// Terminal-based file converter

Modern TUI interface built with Go. Batch convert your images, videos, audio, and documents. Vim key bindings for fast navigation.

GitHub

$ go install github.com/sametcn99/golter@latest

●Cross-Platform

●Open Source

user@terminal: ~ — golter

Golter - File Converter

Select files to convert

📂/home/user

1712 folders, 4 files

📂Documents

📂Downloads

📂Music

📂Pictures

📂Videos

📂Projects

📂Work

📂Archive

📂Backup

📂Personal

📂Misc

↑↓/jkNavigate

SpaceSelect

aSelect all

dDeselect

EnterOpen folder

cConfirm

/Filter

qQuit

func Features() {

// Powerful Features

Everything you need to streamline your file conversion experience in one tool.

Modern TUI Interface

Beautiful terminal interface with animations and visual feedback.

Batch Conversion

Convert multiple files simultaneously with concurrent processing.

High Performance

Native image processing and optimized encoding powered by Go.

Compression Options

Choose between High, Balanced, or Compact quality levels.

Vim Key Bindings

Fast navigation with j/k, h/l and full keyboard support.

Smart File Selection

Select only files of the same type for consistent conversions.

}

typeSupportedFormatsstruct{

// Supported Formats

Clear input/output mappings, feature highlights, and dependencies at a glance.

Images

High-quality image conversion with smart compression.

Inputs → Outputs

.jpg.jpeg.png.webp→.jpg.png.webp

Features

Quality-based compression (92% High, 75% Balanced, 55% Compact)
WebP lossless mode for highest quality
Optimized PNG compression levels

Videos

Optimized video workflows for streaming and sharing.

Inputs → Outputs

.mp4.avi.mkv.webm.gif.mov→.mp4.avi.mkv.webm.gif.mov

Features

H.264/H.265 encoding for MP4/MKV
VP9 encoding for WebM
Optimized GIF creation with palette generation
Multi-threaded encoding
Fast-start enabled for MP4 streaming

Audio

Studio-grade audio conversion with bitrate presets.

Inputs → Outputs

.mp3.wav.ogg.flac.m4a.aac→.mp3.wav.ogg.flac.m4a.aac

Features

Bitrate control (320k High, 192k Balanced, 128k Compact)
FLAC lossless support
Opus/Vorbis encoding for OGG

Documents

Rich document pipelines for books, office, and data formats.

InputOutput

.pdf.md.html

.pdf.md.html.docx.epub.mobi.azw.azw3.fb2

.docx

.md.html.txt

.epub.mobi.azw.azw3.fb2

.epub.mobi.azw.azw3.fb2.pdf.html.txt.md

.csv

.xlsx.json

.xlsx.xls

.csv.json

.json

.yaml.yml.xml.csv.xlsx.xls

.yaml.yml

.json.toml

.toml

.yaml.yml

.xml

.json

Features

PDF text extraction to Markdown
Markdown to styled HTML with responsive design
Markdown/HTML to EPUB conversion
EPUB/MOBI/AZW/AZW3/FB2 conversions via Calibre (if installed)
DOCX conversions via Pandoc (if installed)
PDF compression/optimization
CSV to Excel conversion with styled headers and auto-fit columns
Excel to CSV export (exports first sheet)
JSON ↔ YAML conversion (preserves nested data)
JSON ↔ XML conversion with automatic root wrapping
JSON ↔ CSV / Excel (first sheet) conversions
YAML ↔ TOML conversion

Note: Video and audio conversion requires ffmpeg. Ebook conversions beyond EPUB require Calibre's ebook-convert. DOCX conversions require Pandoc.

}

var keybindings = map[string]string{

// Keyboard Shortcuts

Fast and efficient navigation with Vim-like key bindings.

"Navigate up"

:↑|k,

"Navigate down"

:↓|j,

"Go to parent directory"

:←|h,

"Enter directory"

:→|l,

"Select/Deselect"

:Space,

"Select all of same type"

:a,

"Clear all selections"

:d,

"Confirm selection"

:c,

"Filter files"

:/,

"Go to top"

:g,

"Go to bottom"

:G,

"Back / Cancel"

:Esc,

"Quit"

:q,

}

func Install() error {

// Quick Install

Go 1.21+ and ffmpeg are required. ffmpeg must be installed for video and audio conversion.

One-Click Install

$ go install github.com/sametcn99/golter@latest

Build with Taskfile (Recommended)

# Clone repository

$ git clone https://github.com/sametcn99/golter.git

$ cd golter

# Install task

$ go install github.com/go-task/task/v3/cmd/task@latest

# Install golter

$ task install

# Run

$ golter

Platform Specific Install

return nil

}